Effects of grinding media on flotation performance of calcite

被引：19
|
作者：
Yao, Wei [1 ,2 ]
Li, Maolin [1 ,2 ,3 ]
Zhang, Ming [1 ,2 ]
Cui, Rui [1 ,2 ]
Jiang, Hongqiang [1 ,2 ]
Li, Yun [1 ,2 ]
Zhou, Sheng [1 ,2 ]
机构：
[1] Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, Wuhan 430081, Hubei, Peoples R China
[2] Hubei Key Lab Efficient Utilizat & Agglomerat Met, Wuhan 430081, Hubei, Peoples R China
[3] Changsha Res Inst Min & Met Co Ltd, Changsha 410012, Hunan, Peoples R China
来源：
MINERALS ENGINEERING | 2019年 / 132卷
基金：
中国国家自然科学基金;
关键词：
Calcite; Grinding media; Flotation behavior; Iron species; SLIME COATINGS; SEPARATION; SCHEELITE; SODIUM; GALENA;
D O I：
10.1016/j.mineng.2018.12.005
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Grinding is an important pre-treatment process in mineral processing. Different grinding media produces minerals with different flotation performance. This study investigated the flotation performance of calcite particles of size -74 + 38 pm produced by ceramic and steel media grinding through single mineral flotation experiments, zeta potential measurements, and X-ray photoelectron spectroscopy (XPS) tests. The flotation results showed that calcite produced by ceramic media grinding had better flotation recovery than that produced by steel media grinding. Zeta potential measurement results indicated that the surface of calcite produced by ceramic media grinding had more adsorbed sodium oleate (NaOL) than that produced by steel media grinding. XPS results revealed Fe, specifically, Fe(0), Fe(II), and Fe(III), on the surface of calcite produced by steel media grinding but none on that produced by ceramic media grinding.
引用
收藏
页码：92 / 94
页数：3
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